It's a sad day, but not an unexpected one. Releasing the source is the best thing you could have done.
Though I do have some questions:
Were all team members really on board to have the source code released? That's kind of amazing!
Secondly... "release as open source", yes, but under what license? GPL? BSD? MIT? A Creative Commons license? Or something more restrictive? If anyone decides to pick this up and finish it, what should and shouldn't they be allowed to do?
Finally, it seems there is a .gitignore file, so there has to have been a .git folder with revision history. Is there any reason that was omitted? Perhaps going back to earlier commits before refactoring might make it easier for people to cobble certain features back together into a working (or more coherent) state.